(1) Subject to subsection (2), the length overall of a vessel is 110% of the length as shown on the vessel's load line certification.
(2) If the length overall of a vessel cannot be worked out under subsection (1), the length overall is taken to be the distance between:
(a) a vertical line passing through a point that is the foremost part of the bow; and
(b) a vertical line passing through a point that is the aftermost part of the stern.